EP 0241986 A1 19871021 - Transmission projection screen and method of manufacturing same.
Title (en)
Transmission projection screen and method of manufacturing same.
Title (de)
Transmissionsprojektionsschirm und Verfahren zu dessen Herstellung.
Title (fr)
Ecran de projection à transmission et sa méthode de fabrication.
Publication
Application
Priority
NL 8600944 A 19860415
Abstract (en)
The invention relates to a transmission projection screen having a high light output and a suitable contrast, for example for use in a projection television system, and a method of manufacturing such a screen. The projection screen comprises a transparent substrate having a front surface which is provided with mutually parallel ribs 2. At the bottom of the grooves 4 between the ribs 2 two individual layers of light-absorbing particles 11 and 12 are provided. The said particles are fixed by means of an adhesive layer 14.
IPC 1-7
IPC 8 full level
G03B 21/62 (2006.01)
CPC (source: EP US)
G03B 21/625 (2013.01 - EP US)
Citation (search report)
- [A] EP 0154053 A2 19850911 - PHILIPS NV [NL]
- [A] US 4573764 A 19860304 - BRADLEY RALPH H [US]
Designated contracting state (EPC)
DE FR GB IT NL SE
DOCDB simple family (publication)
US 4688093 A 19870818; CA 1274713 A 19901002; DE 3772428 D1 19911002; DK 168025 B1 19940117; DK 186787 A 19871016; DK 186787 D0 19870410; EP 0241986 A1 19871021; EP 0241986 B1 19910828; JP H0746196 B2 19950517; JP S62245239 A 19871026; NL 8600944 A 19871102
DOCDB simple family (application)
US 89198386 A 19860730; CA 534409 A 19870410; DE 3772428 T 19870406; DK 186787 A 19870410; EP 87200638 A 19870406; JP 9109387 A 19870415; NL 8600944 A 19860415